JP3226516B2 - Air pump equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air pump device, and more particularly to an improvement in an air pump device used for charging air to bicycle tires and the like outdoors.

[0002]

2. Description of the Related Art For example, a manually operated air pump device used for filling a bicycle or a motorcycle with air is generally provided with a cylinder 60 as shown in FIG.
A piston 62 slidably provided in the cylinder 60; a piston rod 66 connected to the piston 62 and extending upward through a rod through hole 64a formed in a cylinder head 64; 66
And a handle 30 attached to the end of the cylinder. The operator raises and lowers the handle 30 to move the piston 62 within the cylinder 60 to supply compressed air.

Further, in such an air pump device 10, as shown in FIG.
Some air tanks have an air tank 68 for storing the compressed air fed from the air tank. Since the air tank 68 communicates with the inside of the object to be filled such as a tire, the air pressure inside the air tank 68 is kept equal to the air pressure of the air already filled in the object to be filled such as a tire, This makes it possible to lightly and smoothly perform the next compressed air supply stroke, that is, push down and pull up of the handle 30.

In these air pump devices 10, a hose 42 is normally connected to an air discharge port 20 of a cylinder 60 as shown in FIG.
An injection nozzle 44 inserted into a base formed on a wheel or the like of a tire is provided at a tip of the tire, and the hose 42 and the injection nozzle 44 are used to fill an object to be filled such as a bicycle tire with compressed air. When not in use, these hoses 42 and injection nozzles 44, as shown in FIG.
In many cases, the clip 70 or the like is held on a portion of the pithlon rod 66 projecting upward from the cylinder 60 by a clip 70 or the like. .

[0005] Such an air pump device 10 is often used outdoors where objects to be filled such as bicycle tires are present. In addition to the use of the bicycle, the bicycle may be stored in a permanent bicycle storage area such as a bicycle parking lot on the premises of the home. Has already proposed,
In order to respond to situations such as when air escapes while traveling on the road or when it is necessary to fill the air after riding for a while, etc. (See Utility Model Registration No. 2511139).

[0006]

However, when the conventional air pump device 10 is used, stored, installed, etc. by exposing it to a severe external environment such as outside air containing moisture, wind and rain, etc. In the air pump device 10, as shown in FIGS. 11 and 12, the cylinder head 64 has a rod through hole 64 a opened upward for allowing the piston rod 66 to pass therethrough. For example, moisture easily enters the inside of the cylinder 60 through the rod through hole 64a, and rust or the like is generated inside the cylinder 60 due to the moisture, thereby impairing the function of the air pump device 10 of compressing and sending air. There was something.
In addition, unnecessary moisture is mixed in the compressed air to be delivered to the filling material such as tires. There is a risk of impairing the original performance such as high rotation performance and durability.

Therefore, in order to store the conventional air pump device 10 without deteriorating its performance,
Normally, it is necessary to store it indoors and carry it out only when it is used, which limits storage. In addition to storage, it could not be used outdoors, for example, under conditions where moisture easily enters the cylinder 60, such as during rainy weather. Therefore, as proposed by the present inventor, as described above, it has not been possible to sufficiently cope with the constant installation outdoors such as a bicycle parking lot of a public facility.

When an air tank 68 is provided separately from the cylinder 60 as in the air pump device 10 shown in FIG. 12, the entire air pump device 10 becomes larger by that amount and is unnecessary for use, storage and installation. Requires extra space, which not only wastes space, but also
Since the number of parts also increases, there is a problem that the manufacturing process becomes complicated and the cost increases.

Further, in the conventional air pump device 10, in order to clear the hose 42 and the injection nozzle 44 after use, as shown in FIGS. Pithlon rod 64
Etc., so it takes time and effort,
When the worker leaves the hose 42 or the like without clearing it in this way, the hose 42 and the injection nozzle 44 remain crawling on the ground, especially when the worker is installed in a public bicycle parking lot or the like. There is a risk of being damaged by being stepped on by a large number of people or being laid on vehicle tires. In this sense, the conventional air pump device 10 has a problem in terms of durability enough to withstand outdoor use.

SUMMARY OF THE INVENTION In view of the above problems, the present invention has a durability sufficient to maintain its original performance and withstand outdoor use even when exposed to an external environment such as wind and rain. Another object of the present invention is to provide an air pump device capable of realizing space saving while supplying compressed air smoothly.

[0011]

According to the present invention, as a first means for solving the above-mentioned problems, a first cylinder body having an air passage therein and an air discharge port at one end, and the first cylinder are provided. A first cylinder member including a head provided at the other end of the main body and having an air through hole communicating with the air passage, and a first air compression space formed between the first cylinder member and the head of the first cylinder member. A second cylinder member having a second cylinder body slidably covered by the cylinder member, wherein the second cylinder member is connected to the air compression space from the side opposite to the first cylinder body with outside air, wind and rain, and other external components. The compressed air is discharged from the air discharge port through the air passage of the first cylinder member by being blocked so that the atmosphere flows in and being moved so as to overlap the first cylinder member. There is provided an air pump apparatus according to claim Rukoto.

As described above, the air pump device is constituted by the first cylinder member and the second cylinder member, and the second cylinder member is covered by the first cylinder member having the head. In other words, since it acts as a lid for the air compression space, it can prevent water from entering the air compression space from above even when exposed to rain or water sprinkling. The durability is remarkably improved, and the second cylinder can be slid on the first cylinder member and can compress air between the first cylinder member and the head, while being able to be always installed outdoors. Therefore, without providing special members and materials for waterproofing separately from the structure for compressing the air, it is possible to maintain the original performance of easily sending compressed air at a small space and low cost. It is possible to improve the durability at.

That is, the present invention is a fundamental improvement of a conventional air pump device which generates compressed air by moving a piston in a cylinder, and has a head which has a head. While the first cylinder member corresponding to the conventional moving piston is fixed, the second cylinder member corresponding to the conventionally fixed cylinder is moved to secure the supply of compressed air. The second cylinder member is provided so as to cover the first cylinder member from above to also provide a function as a weatherproof member.

According to the present invention, as a second means for solving the above-mentioned problems, in the first means for solving the problems, the first cylinder member is fixedly installed at an installation place. And an air pump device.

As described above, when the first cylinder member is fixedly installed at the installation place, the air pump device can be installed at, for example, a public bicycle parking lot or the like. At the same time, air can be filled into the object to be filled, and the original performance is not deteriorated even when exposed to the outdoors for a long period of time. Therefore, it is possible to provide additional services to customers, particularly by installing them in bicycle parking lots such as supermarkets, department stores, and banks.

[0016] Thus, for example, when the user goes out on a bicycle, the tires are deflated at the place where the user goes out, or even if the driver needs to fill the vehicle for a while and finds it necessary to return to the home, It is not necessary to go to a bicycle dealer to fill the air, and it is possible to prevent the vehicle from traveling and damaging the rim of the wheel. In addition, it is not necessary to carry out the inflator and go out, of course, unlike a small and simple inflator that requires a small amount of air to be pumped on the bicycle frame etc. Air can be easily and efficiently filled with air. Therefore, it is possible to cope with a bicycle or the like to which an air tank cannot be attached due to the shape and structure of the frame. Also, not only on the go,
By installing in the bicycle parking lot of buildings such as apartments,
Residents, purchasers, and the like can easily fill the air without having to prepare individual air pump devices, thereby improving the convenience for residents and purchasers of apartments and the like.

According to a third aspect of the present invention, in the first or second aspect, the first cylinder member includes an air through hole of the head and a first cylinder. A backflow prevention valve is provided between the air passage of the cylinder body and the backflow prevention valve. The compressed air generated in the air passage of the first cylinder body by the movement of the second cylinder member is sealed in the air passage. It is an object of the present invention to provide an air pump device characterized in that an air passage of one cylinder body is an air tank for storing compressed air.

As described above, when the backflow preventing valve is formed between the air passage and the air passage of the head communicating with the air compression space, the movement of the second cylinder member allows the air to pass from the air compression space through the air through hole of the head. Therefore, the compressed air supplied into the air passage of the first cylinder body does not flow back to the air compression space, and the compressed air can be stored in the air passage. Since it can not only play the role of sending out the air at the time of sending compressed air, but also play the role of an air tank that temporarily stores compressed air with the same air pressure as the air pressure in the packing material until the next compression stroke In addition, there is no need to provide an air tank separately from the cylinder body, and the compressed air can be smoothly supplied in the next process while saving space and reducing costs. That is, the third solution is achieved only when the first cylinder member corresponding to the conventional piston is fixed and the air passage is provided in the interior to make the first cylinder member hollow. It is.

The present invention is directed to a fourth aspect for solving the above problems.
As means, in any one of the first to third problem solving means, all or a part of the second cylinder body of the first cylinder member and the second cylinder member is housed in the pole, and An object of the present invention is to provide an air pump device wherein the two-cylinder main body can be moved by an operation from outside the pole.

As described above, when all or a part of the second cylinder body of the first cylinder member and the second cylinder member is housed and installed in a pole such as a fence pole installed in a bicycle parking lot or the like, The first cylinder member and the second cylinder member can be protected from the outside environment and theft by this pole, and the appearance is the same as a normal fence pole, so it matches well with a bicycle parking lot etc. Can be installed without. In addition, the air pump device can be easily installed simply by replacing the existing pole, so that the workability and economical efficiency of installation can be sufficiently maintained, and existing buildings such as condominiums and public facilities can be maintained. It can also be easily applied and provided as a service to customers and residents. Further, the pole is a pole comprising a support buried underground and a movable pole body nested in the support, wherein the first cylinder member and the second cylinder member are provided in the movable pole body. When the cylinder member is housed, the air pump device can be stored and installed together with the movable pole body in a support underground,
It can also be stored more efficiently and efficiently using space.

According to a fifth aspect of the present invention, a hose connected to the air discharge port of the first cylinder body is provided as a fifth means for solving the above-mentioned problems. An injection nozzle provided at the tip of the hose, the second cylinder member or the pawl has a hose locking portion that can lock a part of the hose,
The hose locking portion locks a part of the hose and suspends and holds the hose and the injection nozzle on the distal end side of the hose locking portion.

As described above, when the hose locking portion is provided on the second cylinder main body or the pole, and the hose and the injection nozzle at the tip end are suspended by the hose locking portion, the injection nozzle is free from the hand after the filling operation. The hoses and the injection nozzles are suspended and held along the outer wall surface of the second cylinder main body without being left on the ground, so that the hoses and the injection nozzles are not suspended on the ground. The hose and injection nozzle can be stored without any work, and these hoses and injection nozzles are not left on the ground and are not damaged by human feet or vehicle tires, etc. Can be fully used. Therefore, an air pump device suitable for installation in a bicycle parking lot of a public facility, an apartment, or the like can be provided.

[0023]

DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) An embodiment of the present invention will be described in detail with reference to the drawings.
1 and 2 show a first embodiment of an air pump device 10 according to the present invention.
As shown in FIG. 1, a first cylinder member 12 and a second cylinder member 14 slidably covered on the first cylinder member 12 are provided.

As shown in FIGS. 1 and 2, the first cylinder member 12 has a first cylinder body 16 having an air passage 18 therein and an air discharge port 20 at one end. A head 22 provided at the other end and having an air through hole 24 communicating with the air passage 18 of the first cylinder body 16.

As shown in FIGS. 1 and 2, the head 22 includes a pedestal packing 22A fitted and attached to the first cylinder body 16, and a gasket 22B held by the pedestal packing 22A. ing. As shown in FIGS. 1 and 2, an air through hole 24 communicating with the air passage 18 is formed in the center of the base packing 22A of the head 22, and a gasket 22B of the head 22 is formed.
As shown in FIGS. 1 and 2, this pedestal packing 2
It has a tapered portion 22a that is formed in a substantially ring-like shape that fits into 2A, and that extends upward while being inclined toward the outer peripheral direction. The pedestal packing 22A can be formed from, for example, hard rubber such as hard urethane, and the gasket 22B is elastically deformable, for example, natural rubber,
It can be formed of a nitrile rubber suitable for a seal member, a synthetic rubber such as a fluorine rubber, a urethane rubber, or the like having excellent wear resistance and weather resistance.

As shown in FIGS. 1 and 2, the second cylinder member 14 has a first air compression space 26 formed between the second cylinder member 14 and the head 22 of the first cylinder member 12.
It has a second cylinder body 28 slidably covered by the cylinder member 12, and a handle 30 provided at an upper end of the second cylinder body 28 for moving the second cylinder body 28 up and down.

The second cylinder body 28 has an inner diameter slightly larger than the outer diameter of the gasket 22B of the head 22 of the first cylinder member 12, as shown in FIGS. The first cylinder member 1 through the opening of the second cylinder body 28.
2 from above, and the inner wall surface 28a of the second cylinder body 28 allows the head 2 of the first cylinder member 12 to be covered.
2, an air compression space 26 can be formed.

The second cylinder body 28 is moved by sliding its inner wall surface 28a to the outer peripheral surface of the tapered portion 22a of the gasket 22B of the head 22 to compress the air in the air compression space 26. The compressed air can be supplied from the air through hole 24 of the head 22 into the air passage 18.

More specifically, as shown in FIG. 1, by pulling up the second cylinder main body 28 by the handle 30, external air is released from the gap 32 between the head 22 and the second cylinder main body 28. While sucking into the compression space 26, as shown in FIG. 2, from the state where air is introduced into the air compression space 26, the second cylinder body 28 is pushed down by the handle 30 to
The taper portion 22a of the gasket 22B of the head 22 is elastically deformed so as to close the gap 32 between the second cylinder body 28 and the head 22 by the air pressure generated at that time by the air pressure generated at that time. Thus, the inner peripheral surface of the second cylinder main body 28 can be slid while closely contacting the outer peripheral surface of the tapered portion 22a of the gasket 22B of the head 22.

As a result, the second cylinder body 28 pressurizes and compresses the air in the air compression space 26, and pressurizes the compressed air through the air through hole 24 of the head 22.
The air discharge port 2 through the air passage 18 of the cylinder member 12
It can be discharged from 0. In the drawings,
Reference numeral 42 denotes an air discharge port 2 of the first cylinder body 16.
Reference numeral 44 denotes a hose connected to the hose 42.
Shows an injection nozzle which is provided at the tip of the nozzle and which is inserted into a not-shown base or the like provided on a material to be filled with compressed air such as a tire. The compressed air discharged from the air discharge port 20 in this manner is The material is fed to the material to be filled through the hose 42 and the injection nozzle 44.

In the illustrated embodiment, the inner diameter of the second cylinder body 28 is set to be slightly larger than the outer diameter of the tapered portion 22a of the gasket 22B of the head 22 so that the second cylinder body 28 and the head 22 Although the gap 32 is provided between the two, the inner diameter of the second cylinder body 28 is set to be substantially the same as the outer diameter of the tapered portion 22a of the gasket 22B of the head 22, and the two can be brought into contact without providing a gap. it can.

In this case, the second cylinder body 28 is pulled up by the handle 30 so as to suck the external air into the air compression space 26, and the suction force generated at that time causes the gasket 22B of the head 22 to be pulled up. The taper portion 22a is elastically deformed so as to slightly reduce its diameter, thereby creating a gap 32 between the head 22 and the second cylinder body 28, and sucking external air into the air compression space 26 from the gap 32. Can be. In this case, since there is no gap 32 between the second cylinder main body 28 and the head 22, there is little leakage of compressed air when the second cylinder main body 28 is pushed down, so that the compression efficiency can be improved. On the other hand, it is considered that the illustrated embodiment in which the gap 32 is provided in advance has better intake efficiency, and in any case,
It is preferable that the optimum clearance between the second cylinder main body 28 and the head 22 be finely adjusted and set in consideration of the efficiency of this, the force required for raising and lowering the second cylinder main body 28, and the like.

As shown in FIGS. 1 and 2, the second cylinder member 14 also has a guide 34 for guiding the sliding of the second cylinder body smoothly and almost straightly.
As shown in FIGS. 1 and 2, the guide 34 is attached near the lower end of the second cylinder main body 28 and forms a slight intake hole 36 with the outer peripheral surface of the first cylinder main body 16. It can slide on the first cylinder body 16. The guide 34 is provided in the air pump device 10.
After assembling, the second cylinder member 12 is engaged with the head 22 to restrict the sliding range of the second cylinder body 28 and to prevent the second cylinder member 12 from coming off the first cylinder member 12. It also has a role as a retainer.

By pulling up the second cylinder member 14, air to be compressed can be introduced into the air compression space 26 from the first cylinder body 16 side, while the second cylinder member 14 The outside air, wind and rain and other external atmosphere are prevented from flowing into the air compression space 26 from the side opposite to the first cylinder body 16.

Specifically, as shown in FIGS. 1 and 2,
By arranging the second cylinder body 28 having a cylindrical shape with a bottom and opening only on one side so as to cover the first cylinder member 12 from above, the air compression space 26 is provided from the side opposite to the first cylinder body 16. The outside air, wind and rain, and other external atmosphere can be prevented from flowing into the apparatus. For this reason,
Since the second cylinder member 12 also functions as a lid of the air compression space 26, water can be prevented from entering the air compression space 26 from above even when exposed to rain or sprinkling water. Outdoor durability such as resistance and weather resistance is remarkably improved, and the air pump device 10 can be always installed outdoors.

That is, since the second cylinder member 14 also has a role of compressing air, and also functions of weather resistance and waterproofing, a special member for waterproofing is provided separately from the structure for compressing air.
Without separately providing materials and the like, it is possible to easily improve the durability outdoors while maintaining the original performance of compressed air supply at a small space and at low cost.

In the illustrated embodiment, the second cylinder member 14 has a second cylinder body 28 having a bottomed cylindrical shape, so that the air compression space 26 from the side opposite to the first cylinder body 16 is formed. Although the outside air, wind and rain and other external atmosphere are prevented from flowing into the second cylinder body 28, the handle 30 may be attached so as to close the hole even if a slight hole is formed in the second cylinder body 28. By
The outside atmosphere can be blocked from flowing into the air compression space 26. In any case, the second part cylinder member 1
No. 4 only needs to be provided with the waterproof / weatherproof function as a whole.

(Second Embodiment) Further, as a result of the present invention being excellent in waterproofness and weather resistance, it is possible to adopt the following embodiment. That is, as a second embodiment of the present invention, as shown in FIGS. 1 and 2, the first cylinder member 12 can be fixedly installed at an installation place. Specifically, since the original performance is not deteriorated even when exposed outdoors for a long period of time, as shown in FIGS. 1 and 2, the lower part of the first cylinder body 16 is It can be fixed and installed by striking, etc.
Accordingly, the air pump device 10 can be installed outdoors, for example, in an outdoor public bicycle parking lot, and can easily and efficiently fill the air such as tires or the like with air when going out.

As described above, as the installation place where the first cylinder body 16 should be fixedly installed, for example,
Bicycle parking lots of public facilities such as convenience stores, department stores, and banks can be cited. Thereby, a supermarket or the like can also provide additional services to customers. In addition, the convenience can be enhanced by setting a pool or a beach where the floating ring or the like needs to be filled with air as an installation location. In particular, it is advantageous in that air can be easily and efficiently filled on the go without carrying an inflator or the like. Also, not only on the go, but also on bicycle parking lots for buildings such as condominiums,
By setting it as an installation location, residents and purchasers can easily fill the air without having to prepare individual air pump devices, improving the convenience for residents and purchasers of apartments and the like. Can also. Note that, of course, the air pump device 10 of the present invention can be used as a portable unit without being fixed to an installation place as shown in FIGS.

(Third Embodiment) Next, a third embodiment of the present invention will be described.
The third embodiment will be described with reference to FIGS. 3 and 4. In the third embodiment, the first cylinder member 12 includes an air passage hole 24 of the head 22 and an air passage of the first cylinder body 16. A check valve 38 is provided between the valve 18 and the valve 18.

The check valve 38 seals the compressed air generated in the air passage 18 of the first cylinder body 16 by the movement of the second cylinder member 14 into the air passage 18.
The air passage 18 of the first cylinder body 16 can be an air tank 68 for storing compressed air.

Specifically, the check valve 38 is
As shown in FIGS. 3 and 4, the head 22 of the first cylinder member 12 is swingably attached to the lower surface 22b of the pedestal packing 22A, and as shown in FIG. The air through hole 24 can be communicated with the air passage 18 by swinging downward as shown in FIG. 4 while swinging upward so as to close.

Therefore, as shown in FIG. 3, when the second cylinder member 12 is pulled up by the handle 30 and air is sucked into the air compression space 26 as shown in FIG. 22 air through holes 24
To close the previous intake / compression stroke (second cylinder member 12
To prevent the compressed air already fed into the air passage 18 of the first cylinder body 16 from the air compression space 26 through the air through hole 24 of the head 22 from flowing back to the air compression space 26. The compressed air can be stored in the air passage 18.

On the other hand, as shown in FIG. 4, when the air in the air compression space 26 is compressed by pushing down the second cylinder member 12 with the handle 30, the backflow prevention valve 38 is opened by the pressure, and the air compression space 26 is opened. The compressed air communicates with the air passage 18 through the air through hole 24 of the head 22, and compressed air is supplied into the air passage 18 of the first cylinder body 16 through the air through hole 24 of the head 22.

Thus, the air passage 18 of the first cylinder body 16 not only plays a role of sending out the air at the time of supplying the compressed air, but also temporarily becomes equal to the air pressure in the material to be filled until the next compression stroke. Since it can also serve as an air tank 68 for storing compressed air of pneumatic pressure, there is no need to particularly provide an air tank 68 separately from the cylinder body, and the compressed air of the next process can be realized while saving space and reducing cost. Can be smoothly delivered.

(Fourth Embodiment) The fourth embodiment of the present invention
The fourth embodiment will be described with reference to FIGS. 5 to 7. In the fourth embodiment, all or a part of the second cylinder body 28 of the first cylinder member 12 and the second cylinder member 14 is described. Is housed in a pole 40, and the air pump device 10 includes a first cylinder member 12, a second cylinder member 14, and a pole 40 that houses these.

As described above, when the whole or a part of the second cylinder body 28 of the first cylinder member 12 and the second cylinder member 14 is housed and installed in the pawl 40, the first cylinder member 12 and the second cylinder member The member 14 and the air compression space 26 formed by the member 14 can be further protected by the pole 40 from the external environment, theft, and the like.

Particularly, as the pole 40, for example,
It is desirable to use poles for fences installed in bicycle parking lots. Thereby, while having a function of storing compressed air in a part or all of the first cylinder member 12 and the second cylinder member 14 therein, the appearance is the same as a normal pole for fences. It can be installed appropriately and without any discomfort by matching public facilities such as bicycle parking lots.
Therefore, supermarkets, department stores, convenience stores,
In a bank or the like, air can be supplied as an additional service to a customer, and the convenience of a resident in an apartment or the like can be improved.

In this case, as shown in FIGS. 5 to 7, the second cylinder body 28 of the second cylinder member 14 is
It is desirable to be able to be moved by an operation from outside of 0. Specifically, as shown in FIGS. 5 to 7, a part of the second cylinder member 14 above the second cylinder body 28 and the handle 30 are
It can be operated from the outside by projecting to the outside from the opening 40a provided above the. Accordingly, compressed air can be supplied without extra work such as taking out the handle 30 from the inside of the pole 40, and a sufficient space for raising and pushing down the handle 30 is ensured. Can be
The second of the first cylinder member 12 and the second cylinder member 14
Compressed air can be easily supplied while protecting the cylinder body 28.

It is to be noted that, unlike the illustrated embodiment, the second
It is also possible to house not the part of the second cylinder main body 28 but all of the cylinder member 14 in the pawl 40, and protrude only the handle 30 out of the pawl 40. Further, when the air pump device 10 is not used, the entire second cylinder member 14 including the handle 30 is housed in the pawl 40, and is lifted upward only when housed.
It can also be set to be fixed by providing a stopper or the like (not shown) that can be fixed at that position. In this case, for example, if an employee of a supermarket or the like makes this setting, the customer does not need to take extra time. In this case, the air discharge port 20 or the hose 42 penetrates the pole 40 and a part thereof is led out to supply air.

In the embodiment shown in FIG.
The pole 40 is shown to be a replaceable pole with existing telescoping fence poles that can be stored in a support 58 buried underground. That is, the pole 40 of the embodiment shown in FIG. 6 has an engaging portion 40a at the lower part which can be inserted into the support body 58 used for the existing nested fence pole. Accordingly, the existing telescopic pole is removed, and instead, the engaging portion 40a is inserted into the support body 58, and the first cylinder member 12 and the second cylinder member 1 are inserted.
Since the air pump device 10 can be easily installed simply by replacing the pole 40 with the stored poles 4, the workability and economical efficiency of installation can be sufficiently maintained, and the existing facilities such as condominiums and public facilities can be maintained. It can be easily applied to the buildings of No. 1 and provided as a service to customers, residents, and the like.

In the embodiment shown in FIG.
A pole 40 includes a support 40A buried in the ground and a movable pole body 4 nested in the support 40A.
OB are shown. That is, in the embodiment shown in FIG.
To the first cylinder member, the second cylinder member 14, and
The first cylinder member 12 and the second cylinder member 14 are configured to be accommodated and installed in the movable pole body 40B of the pole 40. The support body 40A includes a pole 40 including a movable pole body 40B. is there. In this embodiment, as shown in FIG.
The air supply port 6 or a part of the hose 42 is led out of the movable pole body to the outside to realize air supply.

As described above, the first cylinder member 12 and the second cylinder member 14 are nested in the movable pole body 40B.
7B, the first cylinder member 12 and the second cylinder member 14 are moved together with the movable pole body 40B into the support body 4 buried in the ground, as shown in FIG.
Because it can be stored and installed in 0A, it can be stored without protruding to the surface of the ground when not in use, and there is no obstruction to traffic, etc. It is desirable because it can be used and stored.

In FIG. 7, especially as shown in FIG. 7B, the movable pole body 40B (and the first cylinder member 12 and the second
When the cylinder member 14) is stored in the support body 40A, a part (the handle 30) of the air pump device 10 protrudes from the ground surface.
It can also be set so that all 0's are buried below the ground. According to this, it is possible to more reliably prevent an obstacle such as traffic. In this case, the pole 40 is provided with a cap (not shown) or the handle 3
By using 0 as a cap, the inside of the pole 40 can be protected.

(Fifth Embodiment) Further, a fifth embodiment of the present invention will be described.
The embodiment will be described with reference to FIGS. 8 to 10. In the fifth embodiment, the above-described pawl 40 or the second cylinder member 14 is connected to the air discharge port 2.
It has a hose locking portion 46 that can lock a part of the hose 42 connected to the hose 0. This hose locking part 4
6, as shown in FIGS. 8 to 10, locks a part of the hose 42, thereby suspending and holding the hose 42 and the injection nozzle 44 on the tip side of the hose locking portion 46. .

Specifically, in the air pump device 10 of the embodiment having the pole 40 shown in FIGS. 5 to 7 described above, the hose locking portion 46 is provided as shown in FIG. , A recess is provided in a part of the pole 40, and a flat plate 46a provided at the upper end of the recess can be provided. The hose 42 is led out to the outside through the flat plate 46a to lock the hose 42. Can be. FIG.
As shown in (B), a part of the pole 40 is cut out,
Similarly, a flat plate 46a may be provided above the notch, and the flat plate 46b may be used as the hose locking portion 46.

Further, as shown in FIG. 9 (A), the hose locking portion 46 is provided with a ring 48 fixed to the second cylinder body 28 and having a hollow portion 48a through which the hose 42 penetrates. 9B, a semicircular hook 50 fixedly attached to the second cylinder body 28 and having a hollow portion 50a through which the hose 42 can pass, as shown in FIG. 9C. Similarly, the hose 42 fixedly attached to the second cylinder body 28
Can be formed from a U-shaped hook 52 or the like having a hollow portion 52a that can pass through.

As described above, when the hose locking portion 46 is provided on the second cylinder main body 28, and the hose 42 and the injection nozzle 44 at the tip end are suspended by the hose locking portion 46, after the filling operation, a dotted line in FIG. As shown, the injection nozzle 4
The hose 42 and the injection nozzle 44 are housed in the pole 40 along the outer wall surface of the second cylinder body 28 without being left on the ground by merely releasing the hand 4 from the hand and leaving it free. It is suspended and held so that it does not become. For this reason, the hose 42 and the injection nozzle 44 can be stored and cleared without performing a special cleaning operation.
The device is not left on the ground and is not stepped on by a person's foot or a vehicle tire or the like, and is not damaged. Therefore, the air pump device 10 suitable for installation in a bicycle parking lot or the like of a public facility can be provided.

In this case, the hose locking portion 46 is not necessarily limited to the configuration shown in FIGS. 8 and 9 described above, and any shape may be used as long as the hose 42 can be suspended without fail. Good. However, it is desirable that the hose 42 be set so as not to be easily detached from the hose locking portion 46 so that the hose 42 is not left as if crawling on the ground. In the embodiment shown in FIG.
The hose 42 is led out to the outside through the hose, so that the hose 42 does not easily come off from the flat plate 46a serving as the hose locking portion 46. In the embodiment shown in FIG. 9 as well, each of them surrounds the hose 42 from all directions, and the hollow portions 48a, 50 through which the hose 42 penetrates.
a, 52a are smaller than the injection nozzle 44 attached to the tip of the hose 42, so that the injection nozzle 4
4 is used as a stopper to prevent it from coming off easily.
However, unlike the hose locking portion 46 shown in FIG. 9, if the hose 42 can be locked, for example,
It is also possible to use an L-shaped hook or the like, and this is not denied.

The length of the hose 42 is set so that the hose 42 and the injection nozzle 44 are suspended as shown in FIG. 8, that is, when the hose 42 is stored in a free state, It is desirable to set the length so that 44 does not come into direct contact with the ground and reaches the filling member of the mouthpiece for filling. Thus, the hose 42 and the injection nozzle 44 are not left on the ground just by releasing the hand, and the air can be supplied.

On the other hand, as shown in FIG. 10, in the air pump device 10 having no pawl 40, a hose engaging portion 46 can be provided on the second cylinder main body 28 of the second cylinder member. In this case, as the hose locking portion 46, the above-described embodiments shown in FIGS. 8 and 9A to 9C can be applied.
When the hose locking portion 46 is provided on the cylinder body 28, the hose locking portion 46 is, as shown in FIG. 9D, a spring 56 for suspending the hose 42 and a holding portion for holding the spring 56. 54, at the height of the hose locking portion 46 when the air pump device 10 is not used, when the spring 56 suspends the hose 42 with its natural length, the injection nozzle 44 does not contact the ground. It is desirable to set the length of the hose 42 to the length of the hose 42. According to this, it is possible to prevent the hose 42 and the injection nozzle 44 from being left while responding to the vertical movement of the second cylinder member 14.

When the hose locking portion 46 is housed in the movable pole body 40B shown in FIG. 7, it can be provided on the movable pole body 40B. In particular, when applied to the embodiment shown in FIG. 7, the hose 42 and the injection nozzle 44 are disposed between the movable pole body 40B and the support 40A, and when the movable pole body 40B is stored in the support 40A, The support body 40A can also protect it.

As can be understood from this, the first
The sixth to sixth embodiments can be arbitrarily combined. For example, in the first embodiment shown in FIGS. 1 and 2 and the third embodiment shown in FIGS. 3 and 4,
The hose locking portion 46 according to the fifth embodiment shown in FIG.
Alternatively, as described above, in the fourth embodiment shown in FIGS. 5 to 7, the hose locking portion 46 of the embodiment shown in FIG. 9 can be provided. Further, the first cylinder member 12 and the second cylinder member 14 of the third embodiment shown in FIG. 3 and FIG.
As shown in FIG.

The shape of the first cylinder member 12 and the second cylinder member 14 in each of the above embodiments may be any of round, triangular, square, etc., as long as compressed air can be properly supplied. There is no particular limitation.

[0065]

Next, a first embodiment of the present invention will be described. The first cylinder member 12 is formed of a steel pipe, and the second cylinder member 14 is formed of stainless steel (SUS30).
The air pump device 10 of the embodiment shown in FIGS. 1 and 2 formed from 4) was manufactured. In the head 22, the pedestal packing 22A was formed from hard urethane rubber, and the gasket 22B was formed from nitrile rubber.

As a second embodiment, the check valve 3 shown in FIGS. 2 and 3 is made of the same material as that of the first embodiment.
The air pump device 10 according to the third embodiment having the number 8 is manufactured. The check valve 38 is made of synthetic rubber.

Further, as a third example, the air pump device 10 of the fourth embodiment using the pole 40 shown in FIG. 5 was manufactured from the same material as that of the first example. In addition, the pole 40 was formed from stainless steel (SUS304).

Next, each of the air pump devices 10 of the first to third embodiments was installed outdoors for two months. In addition, the air pump device 10 of these embodiments
Was used at least once a day to fill the bicycle tires with air. During the past two months, there were about seven days of rainy days. The rainwater did not infiltrate into the inside (inside the air compression space 26) and the air supply performance was not impaired. As a result, it was confirmed that the air pump devices 10 of these examples had sufficient water resistance and weather resistance.

In particular, the air pump device 10 of the second embodiment (the third embodiment) having the backflow prevention valve 38
In this case, compressed air can be reliably stored in the air passage 18 of the first cylinder body 16 even when the air is charged. Like the conventional pressure tank 68 shown in FIG. The operation of raising and lowering the handle 30 and the supply of air by this operation could be performed smoothly. As a result, in particular, it was confirmed that the air pump device 10 according to the second embodiment can achieve the same operability as the conventional pressure pump 68 while saving space.

[0070]

According to the present invention, as described above, the air pump device comprises the first cylinder member and the second cylinder member, and the second cylinder member is connected to the first cylinder member having the head. Since the second cylinder member acts as a lid of the air compression space because it is covered, it is possible to prevent water from entering the air compression space from above even when exposed to rain or water spray. The durability in the outdoors such as waterproofness and weather resistance in a severe external environment is remarkably improved, so that the second cylinder can slide on the first cylinder member while the second cylinder can slide on the first cylinder member. Since air can be compressed between the cylinder member and the head, there is no need to provide special waterproof members or materials separately from the structure for compressing the air. so While maintaining the original performance of the feed of compressed air is practical benefits that can improve the durability of the outdoors.

According to the present invention, as described above, since the first cylinder member is fixedly installed at the installation place, the air pump device can be installed, for example, in a public bicycle parking lot or the like. At the same time, air can be easily and efficiently filled into tires and other objects to be filled, and at the same time, even if they are exposed outdoors for a long period of time, their original performance does not deteriorate. By installing in a bicycle parking lot such as a bank, it is possible to provide additional services to customers.
By installing in the bicycle parking lot of buildings such as apartments,
Residents, purchasers, and the like can easily fill the air without preparing an air pump device individually, and there is a real benefit that the convenience for residents and purchasers of condominiums and the like can be improved.

According to the present invention, as described above, the backflow prevention valve is formed between the air passage and the air passage of the head communicating with the air compression space. Since the compressed air supplied from the compression space into the air passage of the first cylinder body through the air through hole of the head does not flow back to the air compression space, the compressed air can be stored in the air passage. The air passage of the first cylinder body serves not only to supply air when supplying compressed air, but also to temporarily store compressed air having an air pressure equal to the air pressure in the material to be filled before the next compression stroke. It can also serve as a tank, so there is no need to provide an air tank separately from the cylinder body, and the compressed air is smoothly fed in the next step while saving space and reducing cost. There is a practical benefits that can bet.

According to the present invention, as described above, all or a part of the second cylinder body of the first cylinder member and the second cylinder member is connected to a pole such as a pole for a fence installed in a bicycle parking lot or the like. Since the first cylinder member and the second cylinder member can be protected from the external environment and theft by this pole, the appearance is the same as a normal pole for a fence. There is a real benefit that it can be installed nicely with a bicycle parking lot, etc., and can be installed without discomfort. In this case, in particular, since the air pump device can be easily installed simply by replacing the existing pole, the workability and economical efficiency of the installation can be sufficiently maintained.
There is a real benefit that it can be easily applied to existing buildings such as condominiums and public facilities and provided as a service to customers and residents.

Particularly, as described above, this pole is a pole composed of a support buried in the ground and a movable pole body nested in the support, and the inside of the movable pole body is Since the first cylinder member and the second cylinder member are housed, the air pump device can be stored and installed together with the movable pole body in a support underground, so that the space can be more efficiently and beautifully displayed. There are benefits that can also be kept using.

According to the present invention, as described above, the hose locking portion is provided on the second cylinder body or the pole, and the hose and the injection nozzle at the tip end are suspended by the hose locking portion. The hose and the injection nozzle are suspended so that they do not hinder the passage or the like along the outer wall surface of the second cylinder body without being left on the ground only by leaving the injection nozzle free from the hand. The hoses and injection nozzles can be stored without special cleaning work, and these hoses and injection nozzles can be left on the ground and stepped on human feet or vehicle tires. There is a practical benefit that it can withstand outdoor use without being damaged.

[Brief description of the drawings]

FIG. 1 is a schematic cross-sectional view showing a state in which a handle is pulled up to suck air into an air compression space in an air pump device of the present invention.

FIG. 2 is a schematic cross-sectional view of the air pump device of the present invention in a state where a handle is pushed down to supply compressed air.

FIG. 3 is a schematic sectional view showing a state in which a handle is pulled up to suck air into an air compression space in an air pump device having a check valve according to another embodiment of the present invention.

FIG. 4 is a schematic cross-sectional view of a state in which a handle is pushed down to supply compressed air in an air pump device having a check valve according to another embodiment of the present invention.

FIG. 5 is a partially cutaway side view of an air pump device having a pole according to another embodiment of the present invention.

FIG. 6 is a partially cutaway side view of an air pump device having a pole according to still another embodiment of the present invention.

FIG. 7 is a partially cutaway side view of an air pump device having a pole composed of a support and a movable pole body according to another embodiment of the present invention.

FIG. 8 is a schematic side view of an air pump device provided with a pole having a hose locking portion according to another embodiment of the present invention.

FIG. 9 is an enlarged sectional view of a hose locking portion used in the present invention.

FIG. 10 is a schematic side view of an air pump device having a hose locking portion according to another embodiment of the present invention.

FIG. 11 is a schematic sectional view of a conventional air pump device.

FIG. 12 is a schematic sectional view of another conventional air pump device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Air pump device 12 1st cylinder member 14 2nd cylinder member 16 1st cylinder main body 18 Air passage 20 Air discharge port 22 Head 22A Pedestal packing 22B Gasket 22a Head taper part 22b Head lower surface 24 Air penetration hole 26 Air compression Space 28 Second cylinder body 30 Handle 32 Gap 34 Guide 36 Intake hole 38 Backflow prevention valve 40 Pole 40a Pole engagement part 40A Support body 40B Movable pole body 42 Hose 44 Injection nozzle 46 Hose locking part 48 Retaining ring 50 Semicircular hook 52 U-shaped hook 54 Holder 56 Spring 58 Support 60 Cylinder 62 Piston 64 Cylinder head 64a Rod through hole 66 Piston rod 68 Air tank

──────────────────────────────────────────────────続 き Continuation of the front page (56) References Registered utility model 3023381 (JP, U) Utility model registration 2511139 (JP, Y2) Japanese Patent Publication No. 40-16184 (JP, B1) (58) Fields surveyed (Int. Cl. ⁷ , DB name) F04B 33/00

Claims (5)

(57) [Claims] 1. A first cylinder body having an air passage therein and having an air discharge port at one end, and a head provided at the other end of the first cylinder body and having an air through hole communicating with the air passage. A second cylinder having a second cylinder body slidably covered by the first cylinder member so that an air compression space can be formed between the first cylinder member and a head of the first cylinder member. The second cylinder member blocks external air, wind and rain, and other external atmosphere from flowing into the air compression space from a side opposite to the first cylinder body, and
An air pump device, wherein compressed air is discharged from the air discharge port through an air passage of the first cylinder member by being moved so as to overlap the cylinder member. 2. The air pump device according to claim 1, wherein the first cylinder member is fixedly installed at an installation location. 3. The air pump device according to claim 1, wherein the first cylinder member is provided between an air passage hole of the head and an air passage of the first cylinder body. A backflow prevention valve interposed between the first cylinder body and the compressed air generated in the air passage of the first cylinder body by the movement of the second cylinder member; An air tank for storing the compressed air in the air passage. 4. The air pump device according to claim 1, wherein all or a part of the second cylinder body of the first cylinder member and the second cylinder member is a pole. The air pump device, wherein the second cylinder body of the second cylinder member is housed in the inside of the pawl and can be moved by an operation from outside the pawl. 5. The air pump device according to claim 1, wherein a hose connected to an air discharge port of the first cylinder body and an injection port provided at a tip of the hose. A nozzle, wherein the second cylinder member or the pawl has a hose locking portion capable of locking a part of the hose, and the hose locking portion locks a part of the hose. An air pump device, wherein the hose and the injection nozzle on the distal end side of the hose locking portion are suspended and held.